21022100002103 has 8 divisors (see below), whose sum is σ = 21470490961920. Its totient is φ = 20573755385560.

The previous prime is 21022100002093. The next prime is 21022100002121. The reversal of 21022100002103 is 30120000122012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21022100002103 - 2¹⁶ = 21022099936567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022100002303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10668143 + ... + 12484128.

It is an arithmetic number, because the mean of its divisors is an integer number (2683811370240).

Almost surely, 2^{21022100002103} is an apocalyptic number.

21022100002103 is a deficient number, since it is larger than the sum of its proper divisors (448390959817).

21022100002103 is a wasteful number, since it uses less digits than its factorization.

21022100002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23171637.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21022100002103 its reverse (30120000122012), we get a palindrome (51142100124115).

The spelling of 21022100002103 in words is "twenty-one trillion, twenty-two billion, one hundred million, two thousand, one hundred three".